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Leona [35]
4 years ago
13

Another gas was used for many years to float transportation balloons.

Chemistry
1 answer:
Alja [10]4 years ago
6 0
Another gas that was used to fill balloons was hydrogen. The reason why hydrogen is not used today is because it use to cause many fires when it was used to fill balloons up.

Hope I helped you! :)
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